身体形状的评估作为在孤立条件和偏远环境中评估人体组成的评估
Michael C Wong1, Jonathan P Bennett2, Lambert T Leong2
1Department of Epidemiology, University of Hawaii Cancer Center, Honolulu, HI, USA. mcwong3@hawaii.edu.
NPJ microgravity
|June 24, 2024
概括
三维光学 (3DO) 图像有效地监测身体组成在远程设置. 虽然模拟的流体移动影响了准确性,但无脂肪质量 (FFM) 测量仍然稳健,显示3DO.
科学领域:
- 身体生理学 身体生理学
- 生物医学工程 生物医学工程
- 遥感 遥感 遥感 遥感
背景情况:
- 极端环境对人体组成构成风险,包括无脂肪质量 (FFM) 损失.
- 准确的身体成分监测对于孤立和偏远地区的人来说至关重要.
- 三维光学 (3DO) 成像为远程身体组成评估提供了一个潜在的解决方案.
研究的目的:
- 评估3DO成像在模拟和实际远程环境中监测身体组成的有效性.
- 为了比较3DO成像对身体组成的估计与双能X射线吸收度 (DXA).
- 评估模拟液体再分配对3DO成像准确性的影响.
主要方法:
- 在健康成年人 (ASTRO) 和南极探险者 (ABCS) 上进行了3DO扫描.
- ASTRO参与者接受了站立和倒置的3DO扫描,倒置扫描模拟流体移动.
- 使用身体组成模型分析3DO数据,并使用回归分析与DXA进行比较.
主要成果:
- 与DXA相比,立式3DO扫描显示了高精度 (FM的R=0.76,FFM的R=0.97).
- 倒置的3DO扫描显示,由于模拟的液体再分配,精度降低 (FM的R2 =0.52,FFM的R2 =0.93) .
- 在每月的评估中,ABCS参与者体重,脂肪量 (FM) 和FFM的变化很小.
结论:
- 3DO成像为孤立和偏远环境中的身体组成评估提供了良好的绝对准确性.
- 模拟的液体再分配会对3DO成像的准确性产生负面影响,特别是对于脂肪质量.
- 使用3DO成像进行无脂肪质量 (FFM) 估计,即使在模拟的引力变化下,也显示出强度.
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